Electrically operated strip server



3nventor '4 Sheets-Sheet l A. F. GILLET ELECTRICALLY OPERATED STRIP' SERVER Filed Dec. 7, 1951 W s 3 H Nov. 20, 1934.

attorney Nov. 20, 1934. A G|LLET 1,981,229

ELECTRICALLY OPERATED STRIP SERVER Filed Dec. '7, 1951 4 Sheets-Sheet 2 Fig.2.

Imnentor tr 'al Nov. 20, 1934.

A. F. GlLLET ELECTRICALLY OPERATED STRIP SERVER 4 Sheets-Sheet 5 m Mae M M fi- 0G1 W m 1 cm s I I A W I I Um mm W N L Filed Dec. '7, 1931 attorney Nov. 20, 1934. A. F. GlLLET ELECTRICALLY OPERATED STRIP SERVER 4 Sheets-Sheet 4 Filed Dec. '7, 1951 B A.F.Gillet MMTTIYI'WQRMQ Patented Nov. 20, 1934 UNITED STATES ELECTRICALLY OPERATED STRIP SERVER Alexis F. Gillet, Omaha, Nebr., assignor to Jubilee Manufacturing (30., Omaha, Nebn, a corporation of Nebraska Application December 7, 1931, Serial .No. 579,494.

Claims.

The present invention relates to improvements 1n electrically operated strip servers, and has for an object certain improvements over my prior co-pending application Serial No. 481,688, filed '5 September 13, 1930. e

In common with the objects of that prior application, the present invention has for its purpose to provide a machine which will retain a roll of gummed paper with associated mechanism for the purpose of advancing this strip as required out of the machine and severing same in suitable lengths; the strip being moistened as it emerges from the machine so that it is ready to be applied to packages to be wrapped.

The particular purpose of the present invention is to provide an electrical unit including a motor and driving rolls which are pivotally carried within the casing of the machine for movement into and out of operative contact with the feed rolls zb for the paper strip.

The invention also contemplates the association of an electrical switch with the motor in such relation that the circuit is opened and closed to the motor in accordance with the position of the driving rolls; the circuit being closed through the motor when the driving rolls are in contact with the feed rollers; the switch being open when the driving rolls are shifted out of operative contact with the feeding rollers.

' The invention has for a further purpose a more direct mechanical operation for the knife which,

severs the strip in suitable lengths.

It is a still further object of the invention to provide a compact and simple motor, switch and '35 drive roll assembly which includes also a connection to the knife for operating the same in such sequence that the paper strip will not be fed against the knife when the same is' across the path of the strip but only when such knife is withdrawn 0 so as not to cause buckling of the strip and the clogging of the machine. 1

With the foregoing and other ob ects in view,

the invention will be more fully described hereinafter, and will be more particularly pointed out in the claims appended hereto.

In the drawings, wherein like symbols refer to like or corresponding parts throughout the several views, I

Figure 1 is a side elevation, with one wall of the casing broken away and showing an improved machine constructed in accordance with the present invention.

Figure 2 is a longitudinal vertical sectional view taken on the line 2-2 in Figure 3 and showing the engaged position of the parts.

Figure 3 is a top plan view of theimproved' machine with 'thecover'removed and showing parts in section.

Figure 4 is an edge view of the'feed-rollersem-' ployed; U .1. Figure 51s a plan view of the knife guide. Figure 6 is a side view thereof. Figure '7 is across section'taken' 'on 'the' line 7-7 in Figurel. J

Figure 8 is a plan viewof the motor'and driving connections, and Figure 9 is an end view .of the same. Referring more particularly to the drawings, 10 designates a roll of gumined paper. appropriately mounted in an adjustable'frame 11 within the casing 12 of themachine. This gummed paper strip 10 is brought up over the feed'rolls 13, which feed rolls are more particularly shown in Figure 4, and are preferably spaced apart upon a shaft 14 which is journaled in appropriate bearings in the casing 12. a F" u The strip of paper passes above the feed falls 13' which are preferably of rubber and such" paper strip is pressed firmly against the pe ripheral edges of the feed rollers 13 byxme'an's' of pressure rollers 15 which pressure rollers-may have knurled peripheral surfaces} as indicated in Figure 3. The pressure rollers 15 are mounted upon a shaft 16, which shaft is slidably mounted in elongated bearings 17 carried by .a plate 18. A spring 19,.carried3by the plate. 18 bearsagainst the shaft 16 and urges the pressure rollers 15 against the paper strip and against the feed rollers'13. i. l. The paper strip passes through a-throat or strip passage above the knife guide, which knife guide is shown more particularly-in Figures'5- and 6 and comprises a substantially U-shaped sheet of metal or other material having the side guide walls 20 open at their ends and upper por tions and formed with a slot 21 intermediately.

thereof.

Perforated end flanges ing the knife guide within the casing 12,1and' upper perforated flangesi23 provide for cooperat-- ing with other partswhich form the strip throat or passage and which'e'aisethe movement of the paper strip through and past the knife-guide. Through the knife guide is adapted to move the reciprocating knife 24;"suchfknife 24. as indicated in Figure 7, having an upper knife edge-composed of downwardly convergent surfaces 25 meeting in a central point 26, whereby to shear the paper strip from the outside toward the 'cen.-' ter during the upward movement of the knife 22 provide for secure I we is properly moistened. The guard plate 30 is across the path of the strip, which upper position is shown in Figure 1.

After passing the knife, the strip is received upon a guide plate 27 which rests upon and terminates short of the moistening pad 28 which dips into the tank of water 29 whereby the pad is kept'moist by capillary attraction. Above the guide plate '27 is a guard 30 bearing upon the strip not only upon the plate 2'7- but also upon the moistener felt 28 and insuring that the same pivotally hung from a pivot stud 31 ca rried by the spring 19 or other part.

The operating lever for the machine is indicated at 32 and the same projects along oneside of the casing as indicated in Figure 3, being connected to a shaft 33 .mounted. transversely across the casing of the machine and carrying a short rearwardly projecting pin 34 and. an elongated downwardly projecting pin 35. The latter connected by a link or red 36, running to the rear of the casing with an electrical switch 3 having spring contacts 38 which receive therebetween the sliding end' portion 39 of the connection 36 which is bent upwardly at itsrear.-

endv and thence rearwardly into alignment with the switch. On this: rod end 39 are a sleeve or section 40 of insulation and a contact cylinder or section 41, preferably of greater diameter as compared withthe insulating sleeve 40. The switch tric motor 44 which electric motor is pivotally mounted, as at 45 to the casing, whereby it may be swung'back and forth to permit the pressure rolls; 46 carried by and with such electric motor to. be movedinto and out of operative relation and contact with the lower portions of the feed rollers 13.

The pressure rollers 46 are mounted upon a shaft 47* which shaft containsa worm wheel 48, best seen in Figures 2,. 8 and 9..

In Figures 8 and 9 the pressure rolls 46 are also shownto have knurled or roughened. peripheries to takea better bite and contact with the rubber surface of. the feed rollers 13. The. worm wheel 48 engages a worm. 49 on the armature shaft of the electric. motor 44. The worm and worm wheel and the pressure rolls 46 are all carried byanextension; frame 50 on the motor housing and this extension frame is a slot 51 for receiving the short rearwardly projecting j pin 34. The movement of the: pin. up: and down in the slot 51 will cause the pivotal. swinging of the electric motor and its. assembly about'the center 45 thus causing the pressure rolls:46' to move into and out ofcontact with the feed rollem. 13., The-two positions of: the parts are manner. as by the pin 53,. shown in. Figure 7. A f

strong spring 541 is coupledbetween the arm '52. and. a; fixed part ofithedevice, the spring tendmg to the shaft 33 in a counter-clockwise direction tothe position. shown in Figure 1, disovercome by the latter when the lever 32 is released.

As shown in Figure 2 the arm 52 has an elongated slot 56 therein for receiving a pin 57 and roller 58 carried upon the knife bar 59 whereby certain loose movement is provided which is necessary to a connection between the reciprocating knife 24 and the oscillating arm 52 moving about the center of the shaft 33. This also forms an anti-friction connection which will facilitate the movement of the parts and prevent any possible disastrous binding.

In operation, the operator will depress the operating lever-32 which is normally in the position shown in Figure 1 to that shown in Figure 2. When so depressed, the transverse shaft 33 is partly turned thus moving with it the pins 34 and 35 and the arm 52. The short pin 34 rotates the electric motor and. its drivingunit to a position where the drive rolls 46 engage firmly with the feed rolls 13, this contact being furthered by the spring 55.

The movement-of the longer pin. 35: will act to shove the rod 36 rearwardly, and shift the'contact section 41 of the switch between the spring contact fingers 38, thus'closing thecircuit and putting the motor 44 intooperation, as. a result of which the worm gearing will be driven causing. corresponding movements: in the drive rolls 46- and the feed rolls 13-. This feeding movement of the paper strip will continue so long as the operating lever 32 is held depressed- By so doing the operator may control. the length of'paper strip desired, which strip isfed outwardly of the machine and appropriately moistened so that it is ready for application.

Also when the lever 32 is depressed the arm 52 will be moved downwardly drawing the knife 24' shown in Figure 1 by a strong spring or'springs- 54 which will rotate the shaft 33 in a counter-- clockwise direction thus quickly shifting the knife 24 upwardly across the path of the strip and severing. that strip at the lengthrequired.

At the same time the switchis opened by reason of the contact section 41 moving out of the con-- tact fingers 38 and being replaced by the insulating sleeve portion 40 so that current is cut. off.

from the motor'44.

After the circuit is openedand the current out off, the armature of the motor will nevertheless continue to revolve on account of the momentum acquired, which revolvable movement of the armature would continue to cause movement of the drive-wheels 46. Such movement of the drive wheels'would. be transferred to the rubber feed rollers 13, causing the paper strip to be fed against the knifewhich at this time extends across the throat of the machine-through which the paper strip is fed". Such movement would cause the buckling of the paper strip against the knife, and-the clogging of the machine. This situation is, however, saved by the fact that the motor and its drive unit are pivotally mounted so as to promptly withdraw the drive rolls 46 from contact with'the feed rollers 13. Any additional movement occasioned by momentum or inertia will, therefore, have no effect on the feed rollers 13 which will be stopped promptly by reason of the friction developed by the paper strip and by the actionof. the pressure rolls 15.v

I do not wish to be restricted to the size, form, and proportions of the various parts, and obviously changes could be made in the construction herein described without departing from the spirit of the invention, it being only necessary that such changes fall within the scope of the appended claims.

What is claimed is:

1. In an electrically operated strip server, an operating shaft, short and long pins on said shaft, a pivotally mounted electric motor, an extension frame on the motor having a slot to receive the short pin, a switch in circuit with the motor, connections to the long pin to open and close said switch, drive means carried by the extension frame of the motor and driven from said motor at reduced speed, and feed rollers for the strip engaged by said drive means.

2. In an electrically operated strip server, an operating shaft, short and long pins on said shaft, a pivotally mounted electric motor, an extension frame on the motor having a slot to receive the short pin, a switch in circuit with the motor, a rod connected to the long pin, said rod having an upturned portion in alignment with said switch to open and close same, drive means carried by the extension frame of the motor and driven from said motor at reduced speed, and feed rollers for the strip engaged by said drive means.

3. In an electrically operated strip server, a pivotally mounted electric motor, feed rollers for the strip, an extension frame having a slot, operating mechanism having a pin playing in said slot for shifting the motor, reduction gearing carried by said extension frame, drive rolls carried by said extension frame and driven by said gearing, said drive rolls being movable into and out of contact with the feed rollers on movement of said pin.

4. In an electrically operated strip server, a casing, an operating shaft mounted transversely across said casing and having long and short pins, a pivotally mounted electric motor moved by said shaft, an extension frame having a slot to receive the short pin, a switch, connections from the long pin to open and close the switch, drive means movable with and operated by said electric motor, and feed rollers for the strip engaged in one position by said drive means. 1

5. In an electrically operated strip server, an operating shaft having long and short pins, a pivotally mounted electric motor, an extension frame on the motor having a slot to receive the short pin, a switch in circuit with the motor, a rod connected to the long pin on one end and the other having an upturned portion in alignment with said switch to open and close same, drive means carried by the extension frame of the motor and driven from said motor at reduced said drive means.

ALEXIS F. GILLET. 

